Journal-box and adjustable bearing therefor.



No. 675,596. Patented June 4, IBM. 1'. W. GREEN.

JOURNAL BUX AND ADJUSTABLE BEARING THEREFOR.

(Applicatiofl filed my. 28, 1901.

(I0 Modal.)

l I J1 4 'IT I y a/ Attorney,

UnrrEn STATES PATENT OFFICE.

THOMAS WV. GREEN, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE ILBRAIIAM BAKER BLOWER COMPANY, OF SAME PLACE.

JUUHNAL BOX AND ADJUSTABLE BEARING THEREFOR.

EEGIFIGATEOY forming part of Letters Patent No. 675,596, dated June 4, 1901.

Application filed February 28, 1901. Serial No. 49.202. (No model.)

To all whont may concern:

Be it known that I, THOMAS .V. GREEN, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented new and useful Improvements in JournahBoXes and Adjustable Bearings Therefor, of which the following is a specification.

My invention relates to adjustable bear- IO ings for the journals of the shafts in heavy and fast-running machinery; and the object of my improvement is to provide a cheap and easily-adj usted device by means of which the center of the shaft may be quickly and ac- 5 curatelyadjusted to its original position after the hearing or the journal, or both, may have become Worn from use. To accomplish the desired result, I make the inner surface of the journahbox cylindrical in form and fit therein an adjustable bearing made in two parts or halves. The outside of the adjustable bearing is formed to a circle that is concentric With the inside of the journal-box. The inside of the bearing is cylindrical, but

not concentric with its outside surface, being concentric with and fitting around the shaftjournal and adjustable up or down in the manner shown.

In the accompanying drawings, Figure l is 0 a plan view of a journal-box having my improvement therein. Fig. 2 is a horizontal sectional view on line cc of Fig. 3. is a vertical sectional view on line 3 y of Fig. 1.

A represents the shaftlying in the journalboX.

B B are the two parts of the eccentric adjustable bushing surrounding the shaft and secured in the journal-box G.

a o; are lugs or extensions cast on the outside of the adjustable bushing in the position shown in Fig. 3.

b l) are set-screws passing through the journal-box, as shown in Fig. 3, and having their inner ends resting against the lugs a a.

c c are depressions cast or otherwise formed 011 the inside of the journal-box G to receive the projecting lugs 0. a on the adjustable bushing.

The thick parts of the adjustable bushing B B are placed adjacent to each other at the top of the box and the thin portions at the bottom.

\Vhen constructed and fitted together in the manner shown, after the shaft-journal or the bushing has become Worn from use the bushing is moved downwardly by means of the set-screws b b, so as to bring the lower or thin edges nearer together. This will cause the thicker portions of the adjustable bushing to come under the journal and bring the center of the shaft back to its original position, thus taking up the Wear.

Having thus described my invention, What I claim as new, and desire to secure byLetters Patent, is-

1. In a journal-bearing, the combination With the journal and suitable support therefor, of a two-part bushing having its bore concentric with the journal and its outer pe- 7o riphery eccentric thereto, and means for adjusting said bushing to compensate for Wear, as set forth.

2. In a journal bearing, the combination with the journal and suitable support therefor, of a two-part bushing having its bore concentric with the journal and its outer periphery eccentric thereto, and separate means for adjusting each part of said bushing to compensate for Wear, as set forth. 8o

3. In a journal-bearing, the combination with thejournal and a suitable bearing therefor, of a two-part bushing having its bore concentric with the journal and its outer periphery eccentric thereto, each part of said bushing being provided With outwardly-extending lugs, and adjusting means adapted to operate on said lugs, whereby the bushing may be adjusted to take up the Wear, as set forth. 9o

4. A journal-box having its inner or bearing surface cylindrical, in combination with an eccentric bushing consisting of two parts, fitting in the journal-box and having its thick ends at the upper part of the box and adjacent to each other, the bore of said bushing being concentric with the journal, and the outer surface of said bushing concentric with the inner surface of the journal-box, and independent means for adjusting each of said we bushing-pieces to take up the wear, as set forth.

5. A journal-box having its innerbearingi provided with the extending lugs a, a, and surface cylindrical and provided with the descrews b, b, for adjusting the parts of said pressions c, c, in combination with a two-piece bushing, substantially as and for the purpose eccentric bushing fitting within the journaldescribed.

5 box with the thick or heavy ends lying adja- In testimony whereof I afiix my signature I5 cent to each other, the outer surface of the in presence of two Witnesses. eccentric bushing being concentric with the THOMAS W. GREEN. inside of the journal-box and the inner sur-' Witnesses: face of said bushing concentric with the shaft- THOMAS D. MOWLDS, IO journal, the two parts of the bushing being FRANCIS S. GINTHER. 

